Add support for storing compressed logs
If log_store_compressed is set, fio won't decompress for storing
them in a file. Instead, you can use --inflate-log=logfile.fz to
output the contents to stdout.
Signed-off-by: Jens Axboe <axboe@fb.com>
diff --git a/iolog.h b/iolog.h
index 66c596e..d268fe2 100644
--- a/iolog.h
+++ b/iolog.h
@@ -24,7 +24,7 @@
struct io_sample {
uint64_t time;
uint64_t val;
- uint32_t ddir;
+ uint32_t __ddir;
uint32_t bs;
};
@@ -52,6 +52,8 @@
uint64_t max_samples;
void *log;
+ unsigned int log_ddir_mask;
+
char *filename;
struct thread_data *td;
@@ -74,6 +76,11 @@
unsigned int log_gz;
/*
+ * Don't deflate for storing, just store the compressed bits
+ */
+ unsigned int log_gz_store;
+
+ /*
* Windowed average, for logging single entries average over some
* period of time.
*/
@@ -86,6 +93,15 @@
struct flist_head chunk_list;
};
+#define io_sample_ddir(io) ((io)->__ddir & ~0x80000000U)
+
+static inline void io_sample_set_ddir(struct io_log *log,
+ struct io_sample *io,
+ enum fio_ddir ddir)
+{
+ io->__ddir = ddir | log->log_ddir_mask;
+}
+
static inline size_t __log_entry_sz(int log_offset)
{
if (log_offset)
@@ -164,6 +180,10 @@
extern void prune_io_piece_log(struct thread_data *);
extern void write_iolog_close(struct thread_data *);
+#ifdef CONFIG_ZLIB
+extern int iolog_file_inflate(const char *);
+#endif
+
/*
* Logging
*/
@@ -173,6 +193,7 @@
int log_type;
int log_offset;
int log_gz;
+ int log_gz_store;
int log_compress;
};